As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HYD PRIMARY PUMP FOLLOWED BY LT HYD DEMAND PUMP FOLLOWED BY LT HYD SYS PRESSURE ILLUMINATED BREIFLY FIVE TIMES. LEFT HYD QTY 1.27, LT HYD TEMP -3 DID NOT HAPPEN AGAIN AFTER HYD QTY IND 1.15. CONNECTED PNUE TO INLET OF LT HYD SYS RES PRESSURIZATION MOD. FOUND AIR BLEED VALVE LEAKING IAW AMM 29-11. REPLACED ABOVE ON LT SYS RES PRESSURE MODULE, PERFORMED RES PRESSURE SYS TEST IAW AMM 29-11-00. NO LEAKS.